CN205262167U - Controllable rotary kiln of thickness of bed - Google Patents
Controllable rotary kiln of thickness of bed Download PDFInfo
- Publication number
- CN205262167U CN205262167U CN201520958572.0U CN201520958572U CN205262167U CN 205262167 U CN205262167 U CN 205262167U CN 201520958572 U CN201520958572 U CN 201520958572U CN 205262167 U CN205262167 U CN 205262167U
- Authority
- CN
- China
- Prior art keywords
- rotary kiln
- tremie pipe
- kiln body
- thickness
- hopper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model discloses a controllable rotary kiln of thickness of bed relates to the solid waste processing technique field. Including rotary kiln body and unloader, unloader includes hopper, weightless title and unloading pipe, and the hopper below is located to weightless title, and with the discharge gate intercommunication of hopper, the discharge gate department of weightless title is located to the unloading pipe, inside the discharge gate of unloading pipe stretched into feed port, its relative rotary kiln body leaned out, and the axis is acute angle alpha with the axis of rotary kiln body, unloading pipe discharge gate department is equipped with the scraper blade, and its bottom tangent plane with the rotary kiln body is parallel, and the width that extends the unloading pipe is 30 -60cm, the discharge gate terminal surface of unloading pipe is acute angle beta with the bottom tangent plane of rotary kiln body. After adopting above -mentioned structure, the rotary kiln device can be controlled the ejection of compact of unloading pipe and pile up the thickness of bed in the rotary kiln bottom after, makes restoreing and the oxidation reaction that the material can be abundant, improves the treatment effeciency.
Description
Technical field
The utility model relates to field of solid waste treating technology.
Background technology
In existing iron and steel enterprise, multiple links all can produce solid waste, as the gravitational dust of sintering dirt, blast furnace ironmaking, gas ash, electric furnace steel making cigarette ash and converter steeling sludge etc. Because these solid waste impurity contents are high, iron-holder is low and be difficult to processing and utilizing, most of solid waste is all abandoned to be processed, and not only causes the wasting of resources, also environment has been caused to very large pollution. And in these solid waste, also there is the metallic element that much can recycle.
At present, when zinc element in extract solid waste, have and utilize redox equipment to extract, object is to collect after zinc element is wherein become to secondary zinc oxide gas again, and rotary kiln is because its disposable treating capacity can be used as greatly preferred redox equipment. In current production equipment, the control of thickness of feed layer is thinked little of, often cause be heated inhomogeneous or material not question response with regard to the phenomenon of after-flame, the quantum of output of secondary zinc oxide gas is had a great impact.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, provide a kind of thickness of feed layer controlled rotary kiln, its can control tremie pipe discharging after be deposited in the thickness of feed layer of rotary kiln bottom, material can be reduced and oxidation reaction fully, improve treatment effeciency.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
The rotary kiln that thickness of feed layer is controlled, comprises rotary kiln body and blanking device; Rotary kiln body is provided with charging port and air-supply port; Blanking device comprises hopper, weightless title and tremie pipe, and weightless title is located at below hopper, is communicated with the discharging opening of hopper, and tremie pipe is located at the weightless discharging opening place claiming; Hopper and the weightless outside that claims to be all positioned at charging port, the discharging opening of tremie pipe stretches into charging port inside, and the relative rotary kiln body of tremie pipe is outward-dipping, and the axis of its axis and rotary kiln body is sharp angle α; Tremie pipe discharging opening place is provided with scraper plate, and it is parallel with the bottom tangent plane of rotary kiln body, and the length of scraper plate is 30-60cm; The discharge port end face tilt of tremie pipe is in the bottom of rotary kiln body tangent plane, and the discharging opening of tremie pipe higher than the side near charging port, makes the discharging opening end face of tremie pipe and the bottom tangent plane of rotary kiln body be acute angles beta away from a side of charging port.
As further technical scheme, described sharp angle α is 40 °-70 °.
As further technical scheme, described acute angles beta is 5 °-15 °.
As further technical scheme, described tremie pipe inside is provided with backgauge boss, and it is fan-shaped, is uniformly distributed in the shape of a spiral around the axis of tremie pipe.
As further technical scheme, described tremie pipe outside is evenly provided with some dithers, and it is axially uniformly distributed along tremie pipe.
As further technical scheme, on described tremie pipe, be provided with material poking rod near the weightless position claiming, material poking rod runs through tremie pipe sidewall and stretches into tremie pipe inside, and it is positioned at the side away from bottom surface on tremie pipe, and its major axis is parallel with the axis of rotary kiln body.
As further technical scheme, described rotary kiln body comprises cylindrical shell, fire brick layer and thermal insulation separation thermosphere, and cylindrical shell two ends are respectively equipped with charging port and air-supply port, and fire brick layer is located on cylinder inboard wall, is provided with thermal insulation separation thermosphere between cylindrical shell and fire brick layer.
The beneficial effect that adopts technique scheme to produce is:
Can control tremie pipe discharging after be deposited in the thickness of feed layer of rotary kiln bottom, material can be reduced and oxidation reaction fully, in single reaction, avoid reacting phenomenon insufficient or the first after-flame of unreacted, improved treatment effeciency and secondary zinc oxide gas yield.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of tremie pipe in Fig. 1.
In figure: 1, rotary kiln body; 2, blanking device; 3, charging port; 4, air-supply port; 5, hopper; 6, weightless title; 7, tremie pipe; 8, scraper plate; 9, backgauge boss; 10, dither; 11, material poking rod; 12, cylindrical shell; 13, fire brick layer; 14, thermal insulation separation thermosphere.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1-2, be an embodiment of the controlled rotary kiln of a kind of thickness of feed layer of the utility model, comprising:
Rotary kiln body 1 and blanking device 2, further reduce continual solid material sending within rotary kiln body 1 and oxidation reaction by blanking device 2, and key reaction formula is ZnO+C=Zn+CO (g), Zn+CO+O2=ZnO+CO2(g), continue heating and can obtain secondary zinc oxide gas, wherein rotary kiln body 1 is provided with charging port 3 and air-supply port 4. Blanking device 2 comprises hopper 5, weightless title 6 and tremie pipe 7, hopper 5 belows be located in weightless title 6, is communicated with the discharging opening of hopper 5, and tremie pipe 7 is located at weightless 6 the discharging opening place that claims, hopper 5 and weightless title 6 are all positioned at the outside of charging port 3, and the discharging opening of tremie pipe 7 stretches into charging port 3 inside. The belt conveyor that material loading is used is transported to material lifting in hopper 5, material falls into the weightlessness being communicated with hopper 5 and claims in 6 subsequently, weightless title 6 can measure the flow velocity of material accurately, makes operating personnel make suitable adjustment to the speed of blanking according to reporting situations of rotary kiln body 1 inside.
Rotary kiln body 1 inside is provided with burner, be forward by charging port 2 to the direction of air-supply port 3, front portion is preheating section, middle part is dryer section, and rear portion is gasification section, each section of temperature required difference, be the situation raising gradually, therefore, burner also will distribute according to ignition temperature, maintains each section of required temperature. In the time that material falls into rotary kiln body 1, because rotary kiln body has certain angle of inclination with respect to bottom surface, therefore at rotary kiln body 1 in the process of self central shaft rotation, also can make material close to air-supply port 4 gradually, and then complete oxidation reaction.
The relative rotary kiln body 1 of tremie pipe 7 is outward-dipping, and the axis of its axis and rotary kiln body 1 is sharp angle α, and sharp angle α is 40 °-70 °. The discharging opening place of tremie pipe 7 is provided with scraper plate 8, and it is parallel with the bottom tangent plane of rotary kiln body 1, and the length that scraper plate 8 extends tremie pipe 7 is 30-60cm, and width is 20-30cm. The discharge port end face tilt of tremie pipe 7 is in the bottom of rotary kiln body 1 tangent plane, the discharging opening of tremie pipe 7 away from a side of charging port 3 higher than the side near charging port 3, make the discharging opening end face of tremie pipe 7 and the bottom tangent plane of rotary kiln body 1 be acute angles beta, acute angles beta is 5 °-15 °. Because tremie pipe 7 is obliquely installed, what material can more relax flows out from tremie pipe 7, is unlikely to pile up and cause blanking obstructed in the bottom of rotary kiln body 1. The discharge port end face tilt of tremie pipe 7 can prevent that material is blocked up in discharging place accumulation to a certain extent, and scraper plate 8 height thickness and other parameters required with reaction that the discharging opening place of tremie pipe 7 establishes matches, can in the time that moving, continue material place thicker material to scrape thin, within making the scope of thickness of feed layer in proper reaction, be unlikely to too thin or too thick, avoid occurring that the bed of material incomplete phenomenon of the blocked up reaction causing and the bed of material cross the phenomenon of the first after-flame of unreacted of thin appearance, ensured the output capacity of secondary zinc oxide gas.
Tremie pipe 7 inside are provided with backgauge boss 9, and it is fan-shaped, is uniformly distributed in the shape of a spiral around the axis of tremie pipe 7. In the process falling from tremie pipe 7 at material, there is sub-fraction can be stacked into backgauge boss 9, reduced to a certain extent the friction of follow-up material to tremie pipe 7 tube walls, extended its service life, further reduce use cost.
Tremie pipe 7 outsides are evenly provided with some dithers 10, and it is axially uniformly distributed along tremie pipe 7. When material flows when having some setbacks in tremie pipe 7, the vibrations that dither 10 produces can make Flow of Goods and Materials again become smooth and easy, also can promote the cake mass sticking on tube wall to split away off, easy cleaning.
Scraper plate 8 is rectangular arcuation shape scraper plate, is located at the side of tremie pipe 7 discharging opening places away from charging port 3, scraper plate 8 can be mated, stable connection with the place that tremie pipe 7 ports are connected. Reasonable in design, meets the space structure of rotary kiln inside, stretches into rotary kiln body 1 inside, can limit to greatest extent thickness of feed layer, ensures that follow-up oxidation reaction can carry out smoothly.
Because initial material may be moister, there is the phenomenon of caking, this will cause material to circulate and have some setbacks in tremie pipe 7, once find this problem, the material of caking should be smashed to pieces so that Flow of Goods and Materials. Therefore, on tremie pipe 7, claim 6 position to be provided with material poking rod 11 near weightless, material poking rod 11 runs through tremie pipe 7 sidewalls and stretches into tremie pipe 7 inside, for smashing caking materials to pieces; Material poking rod 11 is positioned at the side away from bottom surface on tremie pipe 7, makes material in flow process, can not be leaked to outside. Tremie pipe 7 is provided with the through hole that can hold material poking rod 11, and the diameter of this through hole, than the slightly larger in diameter of disclosing material part of material poking rod 11, is conducive to the stirring action of material poking rod 11, makes its space more flexible more greatly.
Rotary kiln body 1 comprises cylindrical shell 12, fire brick layer 13 and thermal insulation separation thermosphere 14, and cylindrical shell 12 two ends are respectively equipped with charging port 3 and air-supply port 4, and fire brick layer 13 is located on cylindrical shell 12 inwalls, between cylindrical shell 12 and fire brick layer 13, is provided with thermal insulation separation thermosphere 14. This structure can not only make rotary kiln withstand high temperatures more, can also retain to greatest extent heat, reduces the consumption of fuel, more energy-conservation.
Adopt after said structure, rotary kiln inside can control tremie pipe discharging after be deposited in the thickness of feed layer of rotary kiln bottom, make material can carry out fully oxidation reaction, in single reaction, avoid reacting phenomenon insufficient or the first after-flame of unreacted, improve treatment effeciency and secondary zinc oxide gas yield, energy-conserving and environment-protective.
Claims (7)
1. the controlled rotary kiln of thickness of feed layer, is characterized in that: comprise rotary kiln body (1) and blanking device (2); Rotary kiln body (1) is provided with charging port (3) and air-supply port (4); Blanking device (2) comprises hopper (5), weightless (6) and the tremie pipe (7) of claiming, hopper (5) below be located in weightless title (6), is communicated with the discharging opening of hopper (5), and tremie pipe (7) is located at the weightless discharging opening place that claims (6); Hopper (5) and weightless title (6) are all positioned at the outside of charging port (3), the discharging opening of tremie pipe (7) stretches into charging port (3) inside, rotary kiln body (1) is outward-dipping relatively for tremie pipe (7), and the axis of its axis and rotary kiln body (1) is sharp angle α; The discharging opening place of tremie pipe (7) is provided with scraper plate (8), and it is parallel with the bottom tangent plane of rotary kiln body (1), and the length of scraper plate (8) is 30-60cm; The discharge port end face tilt of tremie pipe (7) is in the bottom tangent plane of rotary kiln body (1), the discharging opening of tremie pipe (7) higher than the side near charging port (3), makes the discharging opening end face of tremie pipe (7) and the bottom tangent plane of rotary kiln body (1) be acute angles beta away from a side of charging port (3).
2. the controlled rotary kiln of a kind of thickness of feed layer according to claim 1, is characterized in that: described sharp angle α is 40 °-70 °.
3. the controlled rotary kiln of a kind of thickness of feed layer according to claim 1, is characterized in that: described acute angles beta is 5 °-15 °.
4. the controlled rotary kiln of a kind of thickness of feed layer according to claim 1, is characterized in that: described tremie pipe (7) inside is provided with backgauge boss (9), and it is fan-shaped, is uniformly distributed in the shape of a spiral around the axis of tremie pipe (7).
5. the controlled rotary kiln of a kind of thickness of feed layer according to claim 1, is characterized in that: described tremie pipe (7) outside is evenly provided with some dithers (10), and it is axially uniformly distributed along tremie pipe (7).
6. the controlled rotary kiln of a kind of thickness of feed layer according to claim 1, it is characterized in that: described tremie pipe (7) is upper is provided with material poking rod (11) near the weightless position that claims (6), material poking rod (11) runs through tremie pipe (7) sidewall and stretches into tremie pipe (7) inside, and it is positioned at the upper side away from bottom surface of tremie pipe (7).
7. the controlled rotary kiln of a kind of thickness of feed layer according to claim 1, it is characterized in that: described rotary kiln body (1) comprises cylindrical shell (12), fire brick layer (13) and thermal insulation separation thermosphere (14), cylindrical shell (12) two ends are respectively equipped with charging port (3) and air-supply port (4), fire brick layer (13) is located on cylindrical shell (12) inwall, between cylindrical shell (12) and fire brick layer (13), is provided with thermal insulation separation thermosphere (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520958572.0U CN205262167U (en) | 2015-11-27 | 2015-11-27 | Controllable rotary kiln of thickness of bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520958572.0U CN205262167U (en) | 2015-11-27 | 2015-11-27 | Controllable rotary kiln of thickness of bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205262167U true CN205262167U (en) | 2016-05-25 |
Family
ID=56003690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520958572.0U Active CN205262167U (en) | 2015-11-27 | 2015-11-27 | Controllable rotary kiln of thickness of bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205262167U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779325A (en) * | 2019-11-14 | 2020-02-11 | 徐州曹氏化工机械制造有限公司 | Continuous rotary furnace sealing device |
| CN110940195A (en) * | 2019-12-27 | 2020-03-31 | 中冶焦耐(大连)工程技术有限公司 | Upper material layer height adjusting device and method of rotary lime kiln preheater |
-
2015
- 2015-11-27 CN CN201520958572.0U patent/CN205262167U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779325A (en) * | 2019-11-14 | 2020-02-11 | 徐州曹氏化工机械制造有限公司 | Continuous rotary furnace sealing device |
| CN110940195A (en) * | 2019-12-27 | 2020-03-31 | 中冶焦耐(大连)工程技术有限公司 | Upper material layer height adjusting device and method of rotary lime kiln preheater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201104097Y (en) | Continuous rotary kiln with polygon-section boiler tube | |
| CN205262167U (en) | Controllable rotary kiln of thickness of bed | |
| CN108034790B (en) | Raw materials disconnect-type preheats and reinforced device | |
| CN101832706B (en) | External combustion tube type direct reduction shaft furnace | |
| CN102425952A (en) | Scattering device for efficiently dispersing powdery material | |
| CN103088185A (en) | Coal-based direct reduced iron shaft furnace | |
| CN112225420A (en) | Oil sludge pyrolysis carbonization furnace | |
| CN102250627B (en) | Carbonization system using zero-discharge dual-drum rotating carbonization furnace for activated carbon preparation | |
| CN207917935U (en) | The feeding equipment of glass pottery smelting furnace | |
| CN202613992U (en) | Spreading device capable of effectively dispersing powder materials | |
| CN104567349A (en) | Gas rotary kiln | |
| CN205079556U (en) | Drying roller for ore | |
| CN201688680U (en) | External combustion tube direct reduction shaft furnace | |
| JP5928389B2 (en) | End structure of rotary kiln | |
| CN105157373A (en) | Ore drying drum | |
| CN206751398U (en) | A kind of sulphur conveys burner | |
| CN201688682U (en) | Anti-adhesion cloth device | |
| CN101738081A (en) | Shaft kiln | |
| CN101813412B (en) | Method and device for distributing anti-adhesion material for shaft furnace | |
| CN205245190U (en) | Convenient roasting kiln ejection of compact system of arranging sediment | |
| CN211739831U (en) | Rotary kiln rotary drum and rotary kiln | |
| CN205048932U (en) | Drying system | |
| CN110094968B (en) | Heat ceramsite waste heat recovery kiln | |
| CN204461042U (en) | A kind of coal gas rotary kiln | |
| CN220206318U (en) | Ceramsite rotary kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |